diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 498e6fdcc7a..b0ad8c0c989 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -2336,6 +2336,10 @@ static SDValue getAsCarry(const TargetLowering &TLI, SDValue V) { V.getOpcode() != ISD::UADDO && V.getOpcode() != ISD::USUBO) return SDValue(); + EVT VT = V.getNode()->getValueType(0); + if (!TLI.isOperationLegalOrCustom(V.getOpcode(), VT)) + return SDValue(); + // If the result is masked, then no matter what kind of bool it is we can // return. If it isn't, then we need to make sure the bool type is either 0 or // 1 and not other values. |
